Our results showing that with the launcher we can set the energy focus and enhance the single pulse energy (peak value power) effectively, besides, the launcher has its good beam scan performance.
According to tracking theory, automatic following can be divided into three systems: step-advance tracking, taper-scan tracking and single-pulse tracking.
按跟踪原理，自动跟踪可分为三种体制：步进跟踪、圆锥扫描跟踪和单脉冲跟踪。
3
The principle of detector is that the A-Scan flaw instrument of USL32 beams the ultrasonic to detect the bar material with the method of pulse echo once.